Effects of excess light energy on excitation-energy dynamics in a pennate diatom Phaeodactylum tricornutum

Photosynthesis Research - Photosynthesis starts when a pigment in the photosynthetic antennae absorbs a photon. The electronic excitation energy is then transferred through the network of...     

Photosynthesis for Food, Fuel and the Future

<正>Photosynthesis is a process that converts solar energy to chemical energy in many different organisms,ranging from plants to bacteria.Photosynthesis provides all the food we eat and all the fossil fuel we use.Photosynthesis has long been studied in order to understand its underlying mechanisms a     

Tuning the redox potential of tyrosine-histidine bioinspired assemblies

Photosynthesis Research - Photosynthesis powers our planet and is a source of inspiration for developing artificial constructs mimicking many aspects of the natural energy transducing process. In...     

Natural variation in the fast phase of chlorophyll a fluorescence induction curve (OJIP) in a global rice minicore panel

Photosynthesis Research - Photosynthesis can be probed through Chlorophyll a fluorescence induction (FI), which provides detailed insight into the electron transfer process in Photosystem II, and...     

Impaired chloroplast positioning affects photosynthetic capacity and regulation of the central carbohydrate metabolism during cold acclimation

Photosynthesis Research - Photosynthesis and carbohydrate metabolism of higher plants need to be tightly regulated to prevent tissue damage during environmental changes. The intracellular position...     

Photosynthesis and translocation rate in high lysine mutant barley

Photosynthesis and translocation rates were studied in high lysine barley mutant Notch-2 and its parent NP 113. Photosynthesis rates were higher in the     

Photosynthesis of the Cyanidioschyzon merolae cells in blue,red, and white light

Photosynthesis Research - Photosynthesis and respiration rates, pigment contents, CO2 compensation point, and carbonic anhydrase activity in Cyanidioschizon merolae cultivated in blue, red, and...     

光慈姑叶片光合速率日变化规律的研究

以野生和栽培光慈姑植株为材料,研究了光慈姑叶片光合速率日变化规律和环境因子对其的影响,比较了不同生育期光合速率的大小。结果表明:3月份结果的光慈姑叶片净光合速率日变化呈单峰曲线,4月结果的光慈姑叶片净光合速率日变化呈双峰曲线,光合“午睡”现象明显;开花期与结果期的净光合速率日变化差异显著,开花期的净光合速率大于结果期的净光合速率。栽培条件下,叶片净光合速率大于野生状态下的光合速率。     

An invitation to the 16th international congress on photosynthesis research in 2013: opportunities and challenges in the 21st century

The 16th International Congress on Photosynthesis will be held August 11–16, 2013 in St. Louis, Missouri, USA. The congress will include 15 plenary lectures, 21 scientific symposia, poster sessions, exhibitors, opening reception, final banquet, excursions and accompanying persons program. The congress is organized as an official event sponsored by the International Society of Photosynthesis Research.     

Effects of low concentrations of bisulfite-sulfite and nitrite on microorganisms.

A wide range of microorganisms was tested to determine their sensitivity to low concentrations of bisulfite-sulfite and nitrite, solubility products of SO2 and NO2, respectively. Photosynthesis by blue-green algae (cyanobacteria) was more strongly inhibited by 0.1 mM bisulfite-sulfite and 1 mM nitrite at pH 6.0 than photosynthesis by eucaryotic algae and respiration of bacteria, fungi, and protozoa. At pH 7.7, blue-green algae were still more sensitive to bisulfite-sulfite and nitrite than eucaryotic algae, but the toxicity of bisulfite-sulfite and nitrite decreased as the pH increased. Photosynthesis by Anabaena flos-aquae at pH 6.0 was inhibited 25% by a bisulfite-sulfite concentration of 10 micrometer and 15% by a nitrite concentration of 50 micrometer. Photosynthesis by the blue-green alga, Lyngbya sp., was not exceptionally sensitive to chlorate and thiosulfate. Acetylene-reducing activity of Beijerinckia indica was completely inhibited by 0.1 mM bisulfite-sulfite at pH 4.0, the suppression being decreased with increasing pH.     

光合作用各部分反应间的动态衔接与协调

光合作用是地球上最重要的化学反应,由种类繁多、性质各异的反应步骤联系起来。要使光合机构在不断变化的环境中仍能适应运转,它需要随时协调各个部分反应间的关系。本文主要综述了光合能量转换过程中类囊体膜的动态结构变化、同化力组分调节、光合作用原初反应对光照变化的响应及能量转换反应与二氧化碳同化过程的配合等。     

光合作用与农业生产

光合作用被誉为是地球上最重要的化学反应,没有光合作用就不可能有人类社会的产生和发展。光合作用是作物产量形成的物质基础,如何充分利用太阳能进行光合作用是农业生产中的一个根本性问题。文章从作物光能利用率与光合作用效率、光合作用过程及其运转的调控、农业发展动向与高光效三个方面简要分析了光合作用与农业生产的关系,以期为今后的相关研究提供一些思考。     

Obituary

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Preface

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Obituary: Noun Shavit (1930–1997)

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Crop photosynthesis for the twenty-first century

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Govindjee: a lifetime in photosynthesis

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Preface

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Introduction

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Light reflections III

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